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PHAX: A Structured Argumentation Framework for User-Centered Explainable AI in Public Health and Biomedical Sciences

Created by
  • Haebom

Author

Bahar Ilgen, Akshat Dubey, Georges Hattab

Outline

This paper highlights the need for clear, contextually relevant, and socially responsible explanations, as well as accurate predictions, to ensure the transparency and trustworthiness of AI in public health and biomedical systems. To overcome the limitations of existing XAI methodologies, we present the Public Health Argumentation and eXplainability (PHAX) framework. PHAX generates context-aware and user-tailored explanations through a multi-layered architecture that combines refutable reasoning, adaptive natural language processing (NLP), and user modeling. Through various use cases, including medical terminology simplification, patient-physician communication, and policy rationale, we demonstrate AI-driven decision support, recommendation justification, and interactive dialogue support across user types. Specifically, we demonstrate how modeling and personalizing simplification decisions as argument chains based on user expertise enhances interpretability and trustworthiness. In conclusion, PHAX contributes to the implementation of transparent and human-centered AI in public health by integrating formal reasoning methods and communication requirements.

Takeaways, Limitations

Takeaways:
Presenting a new framework (PHAX) to enhance the explainability of AI in public health and biomedical fields.
Generate context-aware and personalized narratives for diverse audiences (healthcare professionals, policymakers, the general public).
Demonstrating the effectiveness of a multi-layer architecture integrating refutable reasoning, adaptive natural language processing, and user modeling.
Provides AI-based decision support, recommendation justification, and interactive dialogue between users.
Presenting practical examples of use, including simplifying medical terminology, patient communication, and providing policy rationale.
Limitations:
Lack of detailed description of the actual implementation and performance of PHAX.
Lack of diverse medical datasets and test results in real-world environments.
Further research is needed on the scalability and generalizability of the PHAX framework.
Verification of the accuracy and reliability of user modeling is required.
Possible lack of consideration for diverse cultural backgrounds and linguistic differences.
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